CHARACTERISTICS OF STYROFOAM WASTE-BASED MEMBRANE THROUGH VAPOR AND LIQUID-INDUCED PHASE INVERSION PROCESS

Polymeric membrane-based-Styrofoam waste in the form of a thin sheet was successfully prepared by phase-inversion technique different final solidification treatments, namely, immersion and evaporation. This study aims to identify effects processes on membrane properties such as hydrophobicity, pore configuration, porosity, temperature stability. Characterization carried out using contact angle, SEM, FTIR, TGA, porosity tests. The results showed that an increase Styrofoam 18-30 wt.% dimethylformamide (DMF) solvent decreases hydrophobicity 9.5%. average angle 62–80° indicated obtained treatment. subjected evaporation treatment hydrophobic. Moreover, microscopy image shows immersed denser than evaporated membrane. higher exchange rate between non-solvent (water) produced tight free air. polystyrene from exhibited excellent stability up 350 °C. In addition, mechanical strength affected employing processes. were also tabulated statistical point view validate conclusions. following information can provide basic knowledge for modifying optimize zero-waste goals.